Multi-component dispenser and valve

ABSTRACT

A dispenser includes a container enclosing several fluid components in isolated sac chambers. The chambers communicate through a valve with at least one passage in a coupler-aspirator. An aerosol propellant cartridge with a valve couples with another passage in the coupler-aspirator. The valve includes a stationary stem and a movable stem member. The sac chambers have adaptors which communicate with the valve. The adaptors may be unitary or individual.

[451 Dec.5, 1972 United States Patent Marand 3,568,889 3/l97l Morane................................222/I36 [s4] MULTl-COMPONENT DISPENSER AND VALVE lnventor:

Primary Examiner-Stanley H. Tollberg [72] Eamqdigyguflr Attorney-Wenderoth, Lind 81. Ponack ABSTRACT [73] Assignee: Clba-Gelgy Corporation, Town of Greenburgh, N.Y. June 29, 1970 [22] Filed:

A dispenser includes a container enclosing several fluid components in isolated sac chambers. The cham- 2 l] Appl. No.: 50,394

bers communicate through a valve with at least one passage in a coupler-aspirator. An aerosol propellant cartridge with a valve couples with another passage in the coupler-aspirator. The valve includes a stationary stern and a movable stern member. The sac chambers have adaptors which communicate with the valve. The adaptors may be unitary or individual.

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[56] References Cited UNITED STATES PATENTS 23 Claims, 5 Drawing Figures 3,451.593 6/1969 Dillarstone.......................222/l45X PATENTEBUEB 5 I972 SHEET 1 OF 3 INVENTOR JEAN MARAND rlllllllllllllllllll ATTURNE YS PATENTED 5 I972 3.704.812

sum 2 OF 3 INVENTOR JEAN MARAND PATENTED E 5 I972 3.704.812

sum 3 or 3 INVENTOR JEAN MARAND Al N RNFYS MULTl-COMPONENT DISPENSER AND VALVE BACKGROUND OF THE INVENTION The present invention relates to a dispensing system for spraying a multi-component fluid, generally liquid, by aspiration with a liquefied gas propellant, wherein the multiple product components are housed in separate flexible product sacs or sac chambers within a protective product container and coupled to an aerosol propellant cartridge separate from the product container through a coupler-aspirator.

More particularly, the present invention relates to such a system employing the use of a simplified valve structure.

Even more particularly, the present invention relates to such a system wherein the valving structure is adapted to be coupled to a unified dual bag adaptor.

Further, more particularly, the present invention relates to such a system wherein the dual bag adaptor is adapted to be combined with a single bag in a manner to produce dual bag chambers.

Dispensers are known for dispensing multi-component products upon aspiration by a liquefied gas propellant. Such dispensers comprise a single productpropellant container. The container houses the propellant cartridge and the several product components. The propellant and the several products are all isolated from each other. Various flow paths lead from the product components and the propellant through a common valve to a nozzle. When the valve is actuated. the products are aspirated by the propellant.

However, certain commercial disadvantages are inherent in such dispensers. In the use of such dispensers it is necessary to create a pressure seal or liquid tight seal between the common container and the valve or the valve collar. This becomes a complex practical problem with sophisticated dispensers. Also, the creation of a satisfactory pressure seal becomes difficult with the use of certain materials.

Furthermore, the general manufacture of aerosol dispensers is a specialized industry. Therefore, manufacturers who wish to market products in new aerosol forms must acquire specialized knowledge and must invest large capital in specialized equipment. An alternative is to farm out" such aerosol production to specialized aerosol manufacturers. This of course, reduces the amount of control which the product manufacturers can exercise over the quality of manufacture of their product.

Also, the handling and shipping of aerosol units is much more complex and expensive than that of nonaerosol products. Special product containers are required, and special shipping regulations must be observed.

Also, for economic reasons, the design of dispensers which contain both propellant and product components in one container must be such that the propellant is used up at approximately the same time as the product. This requires the propellant cartridge to be specifically designed for virtually each and every product which is manufactured. Manifestly, this individualization is expensive. And even though such design may be approximately achieved in the aerosol industry, normal manufacturing tolerances are such that invariably some of the product or propellant is wasted.

In his copending application Ser. No. 48,336 filed June 22, l970, applicant has disclosed a system for overcoming these disadvantages. The system of the said copending application Ser. No. 48,336 includes a product container wherein the individual product components are enclosed in flexible product sacs. The product sacs are connected to flow passages within a product container valve through individual sac adaptors. The flow passages within the valve communicate with one or more flow passages in a coupler-aspirator which is coupled to the outlet of the valve. An additional flow passage within a coupler-aspirator is coupled to the stem of a conventional aerosol valve and propellant cartridge. The flow passages within the coupler-aspirator join at a nozzle. Upon depression and actuation of the aerosol cartridge and valve, the coupleraspirator is also depressed, thereby opening the product container valve. When this occurs, there is flow communication between the various product components and the nozzle in the coupler-aspirator. The product components are aspirated through these flow passages and through the nozzle by the propellant released from the aerosol cartridge.

The present invention represents a modification of the device disclosed in the said application Ser. No. 48,336 and has as one of its principle objects the provision of a system which retains the advantages of the system disclosed in the said copending application Ser. No. 48,336 while also providing a simplified product container valve structure.

It is a further object of the present invention to provide such a system wherein the improved product container valve is adapted to be connected to a unified dual sac adaptor.

It is a yet further object of the present invention to provide such a system wherein the dual sac adaptor may be sealed to a single flexible product sac in a manner to provide two isolated product chambers therein.

These objects are achieved in accordance with the present invention by the provision of a product container having a product container valve collar attached thereto. Extending through the collar is a product container valve including a unified annular body member including a stationary stem. Between the annular body member and the collar is positioned a first flexible annular gasket. A movable stern member includes a second annular body member and an annular tube. Between the annular tube and the second annular body member is positioned a second flexible annular gasket. The annular tube thus acts as a retaining ring to hold the second flexible annular gasket in place. The movable stem member is movably mounted around the stationary stem of the first annular body member. An integral dual sac adaptor is adapted to fit into the first annular body member. A first adaptor tube of the dual sac adaptor fits through the first annular body member and communicates with a hollow passage within the stationary stem. A second adaptor tube of the dual sac adaptor extends through the first annular body member into a passage therein. When the movable stem member is depressed, communication is opened through annular openings in the stationary stem to the hollow passage therein. When the movable stem member is depressed, communication is open between the annular chamber in the first annular body member and longitudinal passages within the second annular body member. The dual sac adaptor is adapted to be sealed to a single flexible product sac in such a manner that two isolated chambers are created therein. Alternatively, single sac adaptors and single flexible product sacs may be connected to the first annular body member.

Other objects and features of the invention will be made clear by the following description taken together with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. I is an elevational illustration of the basic features of the dispensing unit of the present invention shown in conjunction with a conventional aerosol propellant cartridge and valve;

FIG. 2 is a cross-sectional view in detail of the improved product container valve shown in FIG. 1;

FIG. 3 is a cross-sectional view of the improved product container valve of FIG. 2 shown in the actuated position;

FIG. 4 is a cross-sectional view taken along line IV IV in FIG. 2; and

FIG. 5 is a cross-sectional view taken along line V V in FIG. 2.

With reference now to FIG. I of the drawings, the dispensing system of the present invention will be generally described. A protective product container I is adapted to contain multiple component flexible product sacs which may be made of any suitable material to contain the product components. Product container 1 may be made of any suitable or desirable material such as, fiberboard, plastic or metal since it merely serves to protect the sacs. Product container valve 4 is seated in valve collar 5. Valve collar 5 is sealed to container I in any conventional manner. The seal between collar 5 and container 1 need not be a pressure seal. since container 1 does not house a propellant. Further, the seal need not be leakproof since the product components are contained in the sacs. Sacs 2 and 3 are in communication with product flow paths in valve 4 in a manner to be described in detail below. The outlet of product container valve 4 is in communication with a first flow path 7 in a coupleraspirator 6. First flow path 7 and a second flow path 8 join in a Venturi nozzle 9 having a threat position. Second flow path 8 includes the Venturi threat position and is adapted to communicate with stem 10 of a com ventional aerosol valve II of a conventional propellant cartridge 12. Propellant cartridge 12 contains a suitable liquefied gas propellant 13. A clip tube 14 is provided in propellant cartridge 12, since the cartridge will be normally used in the inverted position and vaporized propellant only will be withdrawn. Cartridge 12 is generally aligned with product container 1.

Product container 1 is provided with a guide 15 which is adapted to fit in any conventional manner, such as a snap fit, over the top of the product container. Guide 15 acts to guide and laterally support propellant cartridge 12, as shown in FIG. I. Coupler-aspirator 6 extends to and sprays through a hole 16 in guide 15. Container 1 is provided with holes 17 in any suitable location for the purpose of providing air vents within the container. Holes 17 allow equalization of atmospheric pressure within container 1 and around product sacs 2 and 3. Thus, as product is dispensed from sacs 2 and 3. pressure is equalized therearound to insure continued dispensing.

The general operation of the dispenser shown in FIG. 1 will now be described.

The operator grasps the unit generally around guide 15. Force is applied by finger or thumb in the general direction of arrow 18. Since container 1, coupleraspirator 6, and the cartridge 12 are aligned, this force actuates and opens both the aerosol valve 11 and the product container valve 4. Only pressure sufficient to open the stiffer of these two valves is required. When both valves are open. the product components from both sacs 2 and 3 are aspirated by the propellant into flow path 7 and nozzle 9, to thus be aspirated by propellant from flow path 8.

It is to be understood that any standard propellant cartridge and valve may be used. The cartridge need not be specially designed in terms of quantity for the amount of product. When the propellant is exhausted, it need merely be replaced by another standard propellant cartridge and valve. Additionally, when the products are exhausted and some of the propellant remains, the propellant cartridge may be transferred to a new product dispenser. Thus, it is apparent that the system in accordance with the present invention eliminates waste of both product and propellant.

With reference now to FIGS. 2-5 of the drawings, the operation of the product container valve and the coupler-aspirator generally described in FIG. 1 will be described in further detail. Valve collar 5 has a central opening 20 therein. Just below opening 20, a flexible annular gasket 21 is supported on a first annular body member 22, A crimp 23 in collar 5 acts to retain body member 22 in place and to hold gasket 21 in place. Within first annular body member 22 is an annular chamber 24. Extending upwardly from the center of base 26 of first annular body member 22 within chamber 24 is a stationary stem 25. Movably mounted within opening 20 and around stationary stem 25 is annular movable stem member 27. Movable stem member 27 includes annular tube 28 surrounded by second annular body member 29. A second flexible annular gasket 30 is positioned and held between annular tube 28 and second annular body member 29. Thus. annular tube 28 acts as a retaining ring to hold gasket 30 in place. Annular tube 28 is held in place by a snap portion 29b of second annular body member 29.

Radial openings 31 extend from hollow passage 32 within stationary stem 25 into passage 33 within the interior of annular tube 28. The gasket 30 has the inner periphery thereof obturating the openings 31 and thus serves as a first low pressure obturator. A spring 37 surrounds stationary stem 25 and is positioned between the bottom of second annular body member 29 and the upper surface of base 26 of first annular body member 22 and urges the movable stem member upwardly.

A dual sac adaptor 38 includes a base portion 39 and two adaptor tubes 40 and 41. Dual sac adaptor 38 is adapted to be inserted within an opening in a flexible sac. The edges of the opening in the sac are then sealed to the upper surface of base portion 39 to provide a seal 42. Simultaneously, the center of the sac is sealed to the portion of the base 39 between the adaptor tubes 40 and 41 to provide an upper seal 43, a lower seal 44, and two individual isolated product sac chambers 2 and 3. The dual sac adaptor is adapted to be fitted into the base 26 of first annular body member 22 such that adaptor tube 40 communicates with annular chamber 24 and adaptor tube 41 communicates with hollow passage 32 within stationary stem 25.

it is to be understood that the scope of the present invention encompasses an arrangement whereby individual sac adaptors are employed, rather than the dual sac adaptor 38. Such modification would require only the provision of separate sac adaptors and separate flexible product sacs.

At the top of movable stem 27 is attached coupleraspirator 6. Hollow passage 33 within annular tube 28 opens into a first flow passage 7 of the coupler-aspirator. A reduced diameter section 45 of the coupleraspirator 6 provides a chamber 46. Coupler-aspirator 6 has a depending flange 6a thereon. As shown in FIG. 5 the flange 6a has a plurality of longitudinally extending webs 34 defining a plurality of flow passages 35. Flange 6a and outwardly projecting flange 29a of second annular body member 29 act to provide radial openings 36 which communicate with flow passages 35. The gasket 21 has the inner periphery thereof obturating opening 36 and thus serves as a second low pressure obturator. Flow passages 35 communicate with flow passage '7 of coupler-aspirator 6 through chamber 46. Thus, the product components are mixed in flow passage 7 and are then introduced into nozzle 9 and sprayed therethrough by the propellant.

The operation of the dispenser of the present invention will now be described in detail. As the operator presses down on the propellant cartridge as described above, both the propellant cartridge valve 11 and the product container valve 4 are opened. Force from the propellant cartridge 12 pushes down coupler-aspirator 6. This force is transferred to movable stem member 27. As movable stem member 27 is pushed down into the position shown in FIG. 3, both gasket 21 and 30 are flexed. Therefore, both openings 36 and 31, respectively, are opened. Communication is then open between flexible product sac 2, adaptor tube 40, chamber 24, radial openings 36, longitudinal passages 35, chamber 46, and first flow passage 7. Communication is opened between flexible product sac 3, adaptor tube 41, hollow passage 32, radial openings 31, flow passage 33, and first flow path 7. vaporized propellant is discharged from cartridge 12, down dip tube 14, through stem 10, into second flow passage 8 and thus into nozzle 9. This action aspirates the components of the product through the above-mentioned paths. Coupler-aspirator 6 extends to and sprays the multiple-component product through hole 16 in guide 15.

All of the various parts of the various components of the present invention above-described may be molded of plastic material by conventional molding techniques, thus making possible the provision of such dispensers at a low cost.

The flexible sacs above described are preferably of the thin walled type, and have a great flexibility. The sacs may be made of any suitable material which is compatible to the products used therein. For instance, the sac may be made from any suitable laminate material. Even further, a different laminate material may be used in each compartment of the single sac. This would enable the enclosure of separate materials which are not compatible with any single laminate material.

Thus, it will be seen that there has been provided a multi-component product dispenser which may be manufactured inexpensively by non-aerosol type manufacturers. The dispenser of this invention may manifestly provide greatly improved commercial exploitation of products which heretofore have not been distributed in aerosol form. The unit as described above may be manufactured and adapted to be later combined with a conventional aerosol propellant cartridge. The provision of this type dispenser eliminates a great many manufacturing problems. The product container need not be pressure sealed or leakproof. The product unit need not be shipped or handled under aerosol regulations, since the unit contains no aerosol cartridge or propellant. The waste of either the propellant or the product, heretofore unavoidable. is eliminated.

Furthermore, it will be seen that there has been provided by the present invention a multi-component product dispenser wherein an integral dual sac adaptor may be easily and inexpensively inserted within the product container valve, and wherein separate isolated product sacs may be sealed to the dual sac adaptor from a single flexible sac.

Although a specific embodiment of the invention has been described in detail, such description is intended to be illustrative only, and not restrictive, since many details of the construction of the invention may be altered or modified without departing from the spirit or scope thereof. For instance, although the illustrated embodiment discloses the use of two product components, it is to be understood that the present invention contemplates the use of three or more such components. Such alteration could be made in the disclosed embodiment merely by providing additional product sac chambers, additional adaptor tubes, additional product passages within the product valve, and additional obturating means.

Additionally, while in the embodiment above described the propellant cartridge is located above and aligned with the product container, it is to be understood that the reverse is also possible. That is, the product container could be located above and aligned with the propellant cartridge.

Furthermore, although the embodiment above described has employed the use of a propellant valve which is actuated upon depression, it is to be understood that other conventional propellant valves may be used. For instance, it will be apparent to those skilled in the art that a tilt action propellant valve could be used in the assembly of the present invention.

Even further, though the description of the present invention shows the mixing of the product components in flow passage 7 of the coupler-aspirator, it is to be understood that the mixing of the product components can be delayed until the actual nozzle of the coupleraspirator. Such change would merely require the provision of separate flow passages within the coupleraspirator to the nozzle for each of the product components.

What is claimed is:

l. A multi-component product dispenser comprising a product container housing at least two mutually isolated product components; a valve means on said product container for selectively dispensing said product components, said valve means including a movable stem member, isolated product passages communicating with said product components and obturating means for selectively closing and opening said product passages; and a coupler-aspirator mounted above said product container and having first and second coupling means, said first coupling means connected to said movable stem member and said second coupling means extending upwardly and away from said product container for attachment to the stem of an aerosol valve on a propellant cartridge, said coupleraspirator further having a Venturi nozzle with a throat portion and at least two flow passages joining at said nozzle, said Venturi throat portion being in said second flow passage, the first of said flow passages communicating with said first coupling means and the second of said flow passages communicating with said second coupling means.

2. A dispenser as claimed in claim 1, further comprising a guide means fitting around and extending above said container for providing lateral support for said aerosol propellant cartridge, said guide means having an opening therein through which said multi-component product is sprayed by said coupler-aspirator.

3. A dispenser as claimed in claim I, wherein said valve means further comprises a first annular body member mounted on said product container, said member having a base section, an annular chamber therein above said base section and a stationary stem extending upwardly from said base section, said movable stem member being slidably mounted within said chamber around said stationary stem.

4. A dispenser as claimed in claim 3, wherein said stationary stern has a hollow passage therein and first radial openings extending through said stem from said hollow passage, said movable stem member comprises an annular tube and a second annular body member surrounding said tube, and a first of said obturating means comprises a first annular gasket held between said annular tube and said second annular body member, the inner periphery of said gasket obturating said first radial openings.

5. A dispenser as claimed in claim 4, wherein said first coupling means of said coupler-aspirator has longitudinal passages therein and a radial opening between said first coupling means and said second annular body member, and a second of said obturating means comprises a second annular gasket held between said first annular body member and said container, the inner periphery of said gasket obturating said radial opening.

6. A dispenser as claimed in claim 5, further comprising a unitary flexible product sac having separate chambers enclosing said product components, and a dual sac adaptor sealed to said sac to provide said chambers, said adaptor having a first adaptor tube extending through said base section and communicating with said hollow passage and a second adaptor tube extending through said base section and communicating with said annular chamber.

7. A dispenser as claimed in claim 6, wherein said flexible product sac is comprised of a laminated material.

8. A dispenser as claimed in claim 5, further comprising separate flexible product sacs enclosing said product components, and sac adaptors sealed to said sacs, a first of said sac adaptors extending through said base section and communicating with said hollow passage and a second of said sac adaptors extending through said base section and communicating with said annular chamber.

9. A dispenser as claimed in claim 8, wherein said flexible product sacs are comprised of a laminated material.

10. A multi-component product dispenser comprising a product container housing at least two mutually isolated product components; a valve means mounted on said product container for selectively dispensing said product components, said valve means including a movable stem member, isolated product passages communicating with said product components and obturating means selectively closing and opening said product passages; a coupler-aspirator mounted above said product container and having first and second coupling means, said first coupling means connected to said movable stem member, said coupler-aspirator further having a Venturi nozzle with a throat portion and two flow passages joining at said nozzle, said Venturi throat portion being in said second flow passage, the first of said flow passages communicating with said first coupling means and the second of said flow passages communicating with said coupling means, said second coupling means extending upwardly and away from said product container; and an aerosol propellant cartridge with a valve vertically aligned above said container and having a stern connected to said second coupling means.

11. A dispenser as claimed in claim 10, further comprising a guide means fitting around and extending above said container for providing lateral support for said aerosol propellant cartridge, said guide means having an opening therein through which said multi-com ponent product is sprayed by said coupler-aspirator.

12. A dispenser as claimed in claim 10, wherein said valve means further comprises a first annular body member mounted on said product container, said member having a base section, an annular chamber therein above said base section and a stationary stem extending upwardly from said base section, said movable stern member being slidably mounted within said chamber around said stationary stem.

13. A dispenser as claimed in claim 12, wherein said stationary stem has a hollow passage therein and first radial openings extending through said stem from said hollow passage, said movable stern member comprises an annular tube and a second annular body member surrounding said tube, and a first of said obturating means comprises a first annular gasket held between said annular tube and said second annular body member, the inner periphery of said gasket obturating said first radial openings.

14. A dispenser as claimed in claim 13, wherein said first coupling means of said coupler-aspirator has longitudinal passages therein and a radial opening between said first coupling means and said second annular body member, and a second of said obturating means comprises a second annular gasket held between said first annular body member and said container, the inner periphery of said gasket obturating said radial opening.

15. A dispenser as claimed in claim 14, further comprising a unitary flexible product sac having separate chambers enclosing said product components, and a dual sac adaptor sealed to said sac to provide said chambers, said adaptor having a first adaptor tube extending through said base section and communicating with said hollow passage and a second adaptor tube extending through said base section and communicating with said annular chamber.

16. A dispenser as claimed in claim 15, wherein said flexible product sac is comprised of a laminated material.

[7. A dispenser as claimed in claim 14, further comprising separate flexible product sacs enclosing said product components and sac adaptors sealed to said sacs, a first of said sac adaptors extending through said base section and communicating with said hollow passage and a second of said sac adaptors extending through said base section and communicating with said annular chamber.

18. A dispenser as claimed in claim 17, wherein said flexible product sacs are comprised of a laminated material.

19. A valve for use in a multi-fluid dispenser wherein said fluids are mutually isolated within a container, said valve comprising a first annular body member adapted to be mounted on said container, said member having a base section, an annular chamber therein above said base section and a stationary stem extending upwardly from said base section, said stationary stem having a hollow passage therein and first radial openings extending through said stem from said hollow passage; a movable stem member slidably mounted within said chamber around said stationary stem and including an annular tube and a second annular body member surrounding said tube; and a first annular gasket held between said annular tube and said second annular body member, the inner periphery of said gasket obturating said first radial openings.

20. A valve as claimed in claim 19, further comprising a unitary flexible sac having separate chambers enclosing said fluids, and a dual sac adaptor sealed to said sac to provide said chambers, said adaptor having a first adaptor tube extending through said base section and communicating with said hollow passage and a second adaptor tube extending through said base section and communicating with said annular chamber.

21. A valve as claimed in claim 20, wherein said flex ible sac is comprised of a laminated material.

22. A valve as claimed in claim 19, further comprising separate flexible sacs enclosing said fluids, and sac adaptors sealed to said sacs, a first of said sac adaptors extending through said base section and communicating with said hollow passage and a second of said sac adaptors extending through said base section and communicating with said annular chamber.

23. A valve as claimed in claim 22, wherein said flexible sacs are comprised of a laminated material. 

1. A multi-component product dispenser comprising a product container housing at least two mutually isolated product components; a valve means on said product container for selectively dispensing said product components, said valve means including a movable stem member, isolated product passages communicating with said product components and obturating means for selectively closing and opening said product passages; and a coupler-aspirator mounted above said product container and having first and second coupling means, said first coupling means connected to said movable stem member and said second coupling means extending upwardly and away from said product container for attachment to the stem of an aerosol valve on a propellant cartridge, said coupler-aspirator further having a Venturi nozzle with a throat portion and at least two flow passages joining at said nozzle, said Venturi throat portion being in said second flow passage, the first of said flow passages communicating with said first coupling means and the second of said flow passages communicating with said second coupling means.
 2. A dispenser as claimed in claim 1, further comprising a guide means fitting around and extending above said container for providing lateral support for said aerosol propellant cartridge, said guide means having an opening therein through which said multi-component product is sprayed by said coupler-aspirator.
 3. A dispenser as claimed in claim 1, wherein said valve means further comprises a first annular body member mounted on said product container, said member having a base section, an annular chamber therein above said base section and a stationary stem extending upwardly from said base section, said movable stem member being slidably mounted within said chamber around said stationary stem.
 4. A dispenser as claimed in claim 3, wherein said stationary stem has a hollow passage therein and first radial openings extending through said stem from said hollow passage, said movable stem member comprises an annular tube and a second annular body member surrounding said tube, and a first of said obturating means comprises a first annular gasket held between said annular tube and said second annular body member, the inner periphery of said gasket obturating said first radial openings.
 5. A dispenser as claimed in claim 4, wherein said first coupling means of said coupler-aspirator has longitudinal passages therein and a radial opening between said first coupling means and said second annular body member, and a second of said obturating means comprises a second annular gasket held between said first annular body member and said container, the inner periphery of said gasket obturating said radial opening.
 6. A dispenser as claimed in claim 5, further comprising a unitary flexible product sac having separate chambers enclosing said product components, and a dual sac adaptor sealed to said sac to provide said chambers, said adaptor having a first adaptor tube extending through said base section and communicating with said hollow passage and a second adaptor tube extending through said base section and communicating with said annular chamber.
 7. A dispenser as claimed in claim 6, wherein said flexible product sac is comprised of a laminated material.
 8. A dispenser as claimed in claim 5, further comprising separate flexible product sacs enclosing said product components, and sac adaptors sealed to said sacs, a first of said sac adaptors extending through said base section and communicating with said hollow passage and a second of said sac adaptors extending through said base section and communicating with said annular chamber.
 9. A dispenser as claimed in claim 8, wherein said flexible product sacs are comprised of a laminated material.
 10. A multi-component product dispenser comprising a product container housing at least two mutually isolated product components; a valve means mounted on said product container for selectively dispensing said product components, said valve means including a movable stem member, isolated product passages communicating with said product components and obturating means selectively closing and opening said product passages; a coupler-aspirator mounted above said product container and having first and second coupling means, said first coupling means connected to said movable stem member, said coupler-aspirator further having a Venturi nozzle with a throat portion and two flow passages joining at said nozzle, said Venturi throat portion being in said second flow passage, the first of said flow passages communicating with said first coupling means and the second of said flow passages communicating with said coupling means, said second coupling means extending upwardly and away from said product container; and an aerosol propellant cartridge with a valve vertically aligned above said container and having a stem connected to said second coupling means.
 11. A dispenser as claimed in claim 10, further comprising a guide means fitting around and extending above said container for providing lateral support for said aerosol propellant cartridge, said guide means having an opening therein through which said multi-component product is sprayed by said coupler-aspirator.
 12. A dispenser as claimed in claim 10, wherein said valve means further comprises a first annular body member mounted on said product container, said member having a base section, an annular chamber therein above said base section and a stationary stem extending upwardly from said base section, said movable stem member being slidably mounted within said chamber around said stationary stem.
 13. A dispenser as claimed in claim 12, wherein said stationary stem has a hollow passage therein and first radial openings extending through said stem from said hollow passage, said movable stem member comprises an annular tube and a second annular body member surrounding said tube, and a first of said obturating means comprises a first annular gasket held between said annular tube and said second annular body member, the inner periphery of said gasket obturating said first radial openings.
 14. A dispenser as claimed in claim 13, wherein said first coupling means of said coupler-aspirator has longitudinal passages therein and a radial opening between said first coupling means and said second annular body member, and a second of said obturating means comprises a second annular gasket held between said first annular body member and said container, the inner periphery of said gasket obturating said radial opening.
 15. A dispenser as claimed in claim 14, further comprising a unitary flexible product sac having separate chambers enclosing said product components, and a dual sac adaptor sealed to said sac to provide said chambers, said adaptor having a first adaptor tube extending through said base section and communicating with said hollow passage and a second adaptor tube extending through said base section and communicating with said annular chamber.
 16. A dispenser as claimed in claim 15, wherein said flexible product sac is comprised of a laminated material.
 17. A dispenser as claimed in claim 14, further comprising separate flexible product sacs enclosing said product components and sac adaptors sealed to said sacs, a first of said sac adaptors extending through said base section and communicating with said Hollow passage and a second of said sac adaptors extending through said base section and communicating with said annular chamber.
 18. A dispenser as claimed in claim 17, wherein said flexible product sacs are comprised of a laminated material.
 19. A valve for use in a multi-fluid dispenser wherein said fluids are mutually isolated within a container, said valve comprising a first annular body member adapted to be mounted on said container, said member having a base section, an annular chamber therein above said base section and a stationary stem extending upwardly from said base section, said stationary stem having a hollow passage therein and first radial openings extending through said stem from said hollow passage; a movable stem member slidably mounted within said chamber around said stationary stem and including an annular tube and a second annular body member surrounding said tube; and a first annular gasket held between said annular tube and said second annular body member, the inner periphery of said gasket obturating said first radial openings.
 20. A valve as claimed in claim 19, further comprising a unitary flexible sac having separate chambers enclosing said fluids, and a dual sac adaptor sealed to said sac to provide said chambers, said adaptor having a first adaptor tube extending through said base section and communicating with said hollow passage and a second adaptor tube extending through said base section and communicating with said annular chamber.
 21. A valve as claimed in claim 20, wherein said flexible sac is comprised of a laminated material.
 22. A valve as claimed in claim 19, further comprising separate flexible sacs enclosing said fluids, and sac adaptors sealed to said sacs, a first of said sac adaptors extending through said base section and communicating with said hollow passage and a second of said sac adaptors extending through said base section and communicating with said annular chamber.
 23. A valve as claimed in claim 22, wherein said flexible sacs are comprised of a laminated material. 